Retaining key dismounting device of wheel set

Abstract

The utility model relates to a stop key dismounting device of a wheel set, and relates to the technical field of railway wagon wheel set maintenance. The gear key dismounting device of the wheel set comprises a multi-shaft mechanical arm and a gear key returning assembly. And the stop key returning assembly is connected with the multi-shaft mechanical arm and is configured to be driven by the multi-shaft mechanical arm to push the released stop key away from the limiting position, so that the stop key is separated from the wheel pair to relieve limiting of the wheel pair. When the wheel set needs to be overhauled, the multi-shaft mechanical arm can drive the stop key returning assembly to push the released stop key away from the limiting position, the stop key and the wheel set are made to be away from each other, then limiting of the stop key to the wheel set is relieved, in the stop key disassembling process, the stop key does not need to be manually disassembled in a bowing mode, and the automation degree of railway wagon overhauling is improved; and the maintenance efficiency of railway wagon maintenance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of overhaul of railway freight car axlesets, and particularly to a device for disassembling a retaining key of an axleset. Background Art

[0002] The retaining key of a railway freight car is a small component between the side frame bottom of the railway freight car bogie and the axleset. The retaining key is installed in the guide frame of the bogie side frame through a retaining key bolt. When the bogie is subjected to tensile force, the side frame and the axleset can be connected together by means of the retaining key to prevent the axleset from falling off.

[0003] When the axleset needs to be overhauled, the retaining key bolt needs to be loosened and then the retaining key needs to be retracted. For a long time, in actual operation in railway vehicle repair plants, it is necessary to first loosen the retaining key installed on the bogie side frame, and then manually push the retaining key away from the limiting position so that the retaining key is disengaged from the axleset to release the limit of the axleset by the retaining key. Since the position of the retaining key is relatively low, workers need to squat down, bend over and then push the retaining key back. Working in a bent-over position for a long time results in high labor intensity and low production efficiency. It not only causes great harm to the physical health of workers, but also poses certain potential safety hazards to personal safety. Summary of the Utility Model

[0004] The utility model provides a device for disassembling a retaining key of an axleset, which can replace workers to push the loosened retaining key away from the limiting position, so that the retaining key is disengaged from the axleset to release the limit of the axleset, avoid the harm to health caused by workers working in a bent-over position for a long time, improve the automation of railway freight car overhaul, and improve the overhaul efficiency of railway freight car overhaul.

[0005] An embodiment of the utility model provides a device for disassembling a retaining key of an axleset, including: a multi-axis robotic arm; and a retaining key retracting assembly connected to the multi-axis robotic arm. The retaining key retracting assembly is configured to be driven by the multi-axis robotic arm to push the loosened retaining key away from the limiting position, so that the retaining key is disengaged from the axleset to release the limit of the axleset. The retaining key retracting assembly includes a first driving member and a pushing member, the pushing member is connected to the first driving member, and the first driving member drives the pushing member to abut against the retaining key and push the retaining key away from the limiting position by stretching.

[0006] According to any of the foregoing embodiments of the utility model, the retaining key retracting assembly further includes a second driving member, the first driving member is connected to the second driving member, and the second driving member drives the first driving member to approach or move away from the retaining key by stretching.

[0007] According to any of the foregoing embodiments of the utility model, the stretching direction of the first driving member intersects with the stretching direction of the second driving member, and the second driving member is rotatably connected to the first driving member.

[0008] According to any of the foregoing embodiments of the utility model, the pushing member includes a first connecting plate and a second connecting plate, and the first connecting plate and the second connecting plate form an angle with each other.

[0009] According to any of the foregoing embodiments of the present utility model, the retaining key disassembly device of the wheel set further includes a mounting bracket, the mounting bracket is connected to the multi-axis robotic arm, the retaining key retracting assembly further includes a slider and a slide rail, the slider is fixedly connected to the mounting bracket, the slide rail is slidably connected to the slider, the second driving member is fixedly connected to the slide rail, and the first driving member is rotatably connected to the slide rail.

[0010] According to any of the foregoing embodiments of the present utility model, the retaining key retracting assembly further includes: a first mounting seat fixedly connected to the slide rail; a connecting member; and a connecting plate provided with a mounting through hole, the connecting member is disposed in the mounting through hole, and the connecting plate is rotatably connected to the first mounting seat through the connecting member, and the first driving member is connected to the connecting plate.

[0011] According to any of the foregoing embodiments of the present utility model, the first mounting seat is provided with a limiting shaft, and the connecting plate is provided with an arc-shaped limiting through hole, and the limiting shaft is slidably connected to the arc-shaped limiting through hole.

[0012] According to any of the foregoing embodiments of the present utility model, it further includes: a screwing assembly connected to the multi-axis robotic arm, the screwing assembly is configured to loosen the fastener provided on the retaining key, the retaining key retracting assemblies are arranged in pairs, and the paired retaining key retracting assemblies are respectively disposed on both sides of the screwing assembly.

[0013] According to any of the foregoing embodiments of the present utility model, the screwing assembly includes: a screwing shaft; an electric wrench disposed on the screwing shaft; and a sleeve, the sleeve is drivingly connected to the electric wrench, the electric wrench can drive the sleeve to rotate along its own axis, the sleeve is configured to be cooperatively connected to the fastener of the retaining key, and the axis of the screwing shaft intersects with the axis of the sleeve.

[0014] According to any of the foregoing embodiments of the present utility model, it further includes: a base provided with a control system therein; a first positioning assembly mounted on the base, the first positioning assembly is electrically connected to the control system, and the first positioning assembly is configured to position the position information of the bogie bearing end cover; and a second positioning assembly connected to the multi-axis robotic arm, the second positioning assembly is electrically connected to the control system, and the positioning assembly is configured to position the specific position information of the retaining key.

[0015] The detaching device for the retaining key of the wheel set according to the embodiment of the present application includes a multi-axis robotic arm and a retaining key retracting assembly. The retaining key retracting assembly is connected to the multi-axis robotic arm. The retaining key retracting assembly is configured to be driven by the multi-axis robotic arm to push the loosened retaining key away from the limiting position, so that the retaining key is separated from the wheel set to release the limitation on the wheel set. The retaining key retracting assembly includes a first driving member and a pushing member. The pushing member is connected to the first driving member. The first driving member expands and contracts to drive the pushing member to abut against the retaining key and push the retaining key away from the limiting position. When it is necessary to repair the wheel set, the multi-axis robotic arm can drive the retaining key retracting assembly to reach a position near the retaining key at the bottom of the bogie. Then, the first driving member of the retaining key retracting assembly drives the pushing member, so that the pushing member abuts against the retaining key and pushes the retaining key away from the limiting position. Furthermore, the retaining key and the wheel set are separated from each other, and the retaining key releases the limitation on the wheel set. During the process of detaching the retaining key, there is no need for manual bending over to detach the retaining key, which improves the automation of the maintenance of railway wagons and the maintenance efficiency of railway wagons. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Hereinafter, the present utility model will be described in more detail based on embodiments with reference to the drawings.

[0017] Figure 1 is a schematic structural diagram of the detaching device for the retaining key of the wheel set in an embodiment of the present utility model;

[0018] Figure 2 is a schematic diagram of a partial structure of the detaching device for the retaining key of the wheel set in an embodiment of the present utility model;

[0019] Figure 3 is a schematic structural diagram when the retaining key limits the wheel set in an embodiment of the present utility model;

[0020] Figure 4 is a schematic structural diagram of the assembly of the retaining key and the fastener in an embodiment of the present utility model.

[0021] REFERENCE SIGNS:

[0022] 100 - Detaching device for the retaining key of the wheel set;

[0023] 10 - Multi-axis robotic arm;

[0024] 20 - Retaining key retracting assembly; 21 - First driving member; 22 - Pushing member; L1 - First connecting plate; L2 - Second connecting plate; 23 - Second driving member; 24 - Slide block; 25 - Slide rail; 26 - First mounting seat; 27 - Connecting plate; K1 - Mounting through hole; S1 - Arc-shaped limiting through hole;

[0025] 30 - Screwing assembly; 31 - Screwing shaft; 32 - Electric wrench; 33 - Sleeve;

[0026] 40 - Base; 50 - Mounting frame; D - Retaining key; M - Fastener;

[0027] 200 - Wheel set; 300 - Bogie. Detailed implementation manner

[0028] The present utility model will be further described below in conjunction with the accompanying drawings.

[0029] In the related art, the retaining key is installed at the bottom of the side frame of the bogie through fasteners. The installed retaining key can limit the wheel set. When the bogie is subjected to a tensile force, the side frame and the wheel set can be connected together by means of the retaining key to prevent the wheel set from falling off. When it is necessary to repair the wheel set, the retaining key bolt needs to be loosened and then the retaining key is retracted. For a long time, in actual operation in railway vehicle repair plants, it is necessary to first loosen the retaining key installed on the side frame of the bogie, and then manually push the retaining key away from the limiting position so that the retaining key is separated from the wheel set to release the limit of the wheel set by the retaining key. Since the position of the retaining key is relatively low, workers need to squat down, bend over and then push the retaining key back. Working in a bent-over position for a long time results in a large labor intensity and low production efficiency. It not only causes great harm to the physical health of workers, but also poses certain potential safety hazards to personal safety.

[0030] The present utility model provides a retaining key disassembly device for a wheel set, which can replace workers to push the loosened retaining key away from the limiting position, so that the retaining key is separated from the wheel set to release the limit of the wheel set, avoid the harm to the health caused by workers working in a bent-over position for a long time, improve the automation of railway freight car maintenance, and improve the maintenance efficiency of railway freight car maintenance.

[0031] Figure 1 is a schematic structural diagram of a retaining key disassembly device for a wheel set in an embodiment of the present utility model; Figure 2 is a schematic diagram of a partial structure of a retaining key disassembly device for a wheel set in an embodiment of the present utility model; Figure 3 is a schematic structural diagram when the retaining key limits the wheel set in an embodiment of the present utility model; Figure 4 is a schematic structural diagram of the assembly of the retaining key and the fastener in an embodiment of the present utility model. As Figures 1-4 shown, the present utility model embodiment provides a retaining key disassembly device 100 for a wheel set. The retaining key disassembly device 100 for a wheel set includes a multi-axis robotic arm 10 and a retaining key retracting assembly 20. The retaining key retracting assembly 20 is connected to the multi-axis robotic arm 10. The retaining key retracting assembly 20 is configured to be driven by the multi-axis robotic arm 10 to push the loosened retaining key D away from the limiting position, so that the retaining key D is separated from the wheel set 200 to release the limit of the wheel set 200. The retaining key retracting assembly 20 includes a first driving member 21 and a pushing member 22. The pushing member 22 is connected to the first driving member 21. The first driving member 21 expands and contracts to drive the pushing member 22 to abut against the retaining key D and push the retaining key D away from the limiting position.

[0032] In this embodiment, the first driving member 21 can drive the pushing member 22 to extend and retract, so that the pushing member 22 approaches and abuts against the retaining key D or moves away from the retaining key D. When the retaining key disassembly device of the wheel set is in a non-operating state, the first telescopic member is in a retracted state. When it is necessary to disassemble the loosened retaining key D, the multi-axis robotic arm 10 drives the retaining key retracting assembly 20 so that the retaining key retracting assembly 20 approaches the loosened retaining key D. The first driving member 21 extends so that the pushing member 22 abuts against the retaining key D, and then continues to extend until the pushing member 22 pushes the retaining key D away from the limiting position, so that the retaining key D releases the limitation on the wheel set 200.

[0033] It should be noted that the first driving member 21 can be any one of an electric telescopic rod, an electric push rod or other structural members that can achieve the telescopic operation, as long as it can achieve telescopic movement to drive the pushing member 22 to push the retaining key D away from the limiting position. In this embodiment, an electric telescopic rod is preferably used because the electric telescopic rod has a simple structure and does not require a separate air pump.

[0034] According to the retaining key disassembly device 100 of the wheel set of the embodiment of the present application, when in use, the multi-axis robotic arm 10 can drive the retaining key retracting assembly 20 to extend deep into the bottom of the bogie 300 near the retaining key D, and then the first driving member 21 of the retaining key retracting assembly 20 drives the pushing member 22, so that the pushing member 22 abuts against the retaining key D and pushes the retaining key D away from the limiting position, thereby making the retaining key D move away from the wheel set 200, and further making the retaining key D release the limitation on the wheel set 200. During the disassembly of the retaining key, there is no need for manual bending and stooping to disassemble the retaining key, which improves the automation of railway freight car maintenance and the maintenance efficiency of railway freight cars.

[0035] As Figure 1 shown, in some embodiments, the screwing assembly 30 includes a screwing shaft 31, an electric wrench 32 and a sleeve 33. The electric wrench 32 is arranged on the screwing shaft 31. The sleeve 33 is drivingly connected to the electric wrench 32, and the electric wrench 32 can drive the sleeve 33 to rotate along its own axis. The sleeve 33 is configured to be cooperatively connected with the fastener M of the retaining key D. The axis of the screwing shaft 31 intersects with the axis of the sleeve 33.

[0036] In this embodiment, when the multi-axis robotic arm 10 drives the screwing assembly 30 to loosen the fastener M of the retaining key D, the sleeve 33 is first cooperatively connected with the fastener M of the retaining key D, and the electric wrench 32 arranged on the screwing shaft 31 drives the sleeve 33 to rotate forward or backward to loosen the fastener M.

[0037] In some alternative embodiments, along the axial direction, the diameter of the sleeve 33 gradually decreases from the end away from the drive assembly to the end close to the drive assembly. Optionally, the angle formed by the inner wall of the sleeve 33 and the central axis of the sleeve 33 is 1°-3°, so that the sleeve 33 has a certain tolerance capacity and is adaptable to the common types, sizes, and wear degrees of the retaining key D and the fastener M.

[0038] In some alternative embodiments, the retaining key disassembly device 100 of the wheel set further includes a base 40, a first positioning assembly, and a second positioning assembly. The base 40 is provided with a plurality of traveling wheels and a control system, and the multi-axis robotic arm 10 is connected to the base 40. The first positioning assembly is installed on the base 40, and the second positioning assembly is installed on the mounting bracket 50. The control system is electrically connected to the first positioning assembly, the second positioning assembly, the retaining key retracting assembly 20, and the screwing assembly 30 respectively.

[0039] It should be noted that the multi-axis robotic arm 10 preferably uses a 6-axis robotic rotating arm. The 6-axis robotic rotating arm can meet all degrees of freedom of rotation and also enable the second positioning assembly, the screwing assembly 30, and the retaining key retracting assembly 20 to work at a lower position.

[0040] In this embodiment, the first positioning assembly provided on the base 40 can locate the position information of the bearing end cover of the bogie 300 and feedback the located position information to the control system of the base 40, so that the control system can control the base 40 to move close to the retaining key D of the wheel set 200, enabling the retaining key disassembly device 100 of the wheel set to perform preliminary positioning. The second positioning assembly can collect the specific position of the retaining key D and feedback the collected position information to the control system. The control system controls the multi-axis robotic arm 10 to drive the sleeve 33 of the screwing assembly 30 to cooperate with the fastener M of the retaining key D and loosen the fastener M of the retaining key D, eliminating the need for manual bending over and manually removing the nut of the retaining key D. After the screwing assembly 30 loosens the nut of the retaining key D, the retaining key retracting assembly 20 pushes the loosened retaining key D away from the limiting position, releasing the limit of the retaining key D on the wheel set 200. Throughout the process, the unmanned, automated, and automatic maintenance of high-speed railway freight cars is achieved, improving the maintenance efficiency of railway freight cars.

[0041] In some alternative embodiments, the first positioning assembly includes a lidar and a vision system, and the second positioning assembly includes a vision camera.

[0042] As Figures 1-2As shown, in some embodiments, the key retaining ring removal device 100 of the wheel set further includes a mounting bracket 50, and the mounting bracket 50 is connected to the multi-axis robotic arm 10. The key retaining ring retracting assembly 20 further includes a slider 24 and a slide rail 25. The slider 24 is fixedly connected to the mounting bracket 50, and the slide rail 25 is slidably connected to the slider 24. The second driving member 23 is fixedly connected to the slide rail 25, and the first driving member 21 is rotatably connected to the slide rail 25.

[0043] In this embodiment, the second driving member 23 is connected to the multi-axis robotic arm 10 through the sliding fit of the slide rail 25 and the slider 24. The second driving member 23 drives the slide rail 25 to slide along the slider 24 provided on the mounting bracket 50 by telescoping, thereby driving the first driving member 21 rotatably connected to the slide rail 25 to slide relative to the slider 24, making the direction in which the second driving member 23 drives the first driving member 21 move more stable.

[0044] It can be understood that, in some other alternative embodiments, the slide rail 25 can also be fixedly connected to the mounting bracket 50, the second driving member 23 is connected to the slider 24, and the second driving member 23 drives the slider 24 to slide along the slide rail 25 by telescoping. The first telescopic member is rotatably connected to the slider 24. When the second driving member 23 drives the slider 24 to slide relative to the slide rail 25, the slider 24 drives the first telescopic member to slide relative to the slide rail 25 provided on the mounting bracket 50.

[0045] As Figure 2 shown, in some embodiments, the key retaining ring removal device 100 of the wheel set further includes a first mounting seat 26, a connecting member, and a connecting plate 27. The first mounting seat 26 is fixedly connected to the slide rail 25. The connecting plate 27 is provided with a mounting through hole K1, and the connecting member is disposed in the mounting through hole K1. The connecting plate 27 is rotatably connected to the first mounting seat 26 through the connecting member.

[0046] It can be understood that the connecting member is disposed in the mounting through hole K1 of the connecting plate 27, and the connecting plate 27 is rotatably connected to the first mounting seat 26 through the connecting member. The connecting member can be a hinge shaft or a connecting bolt installed in the first mounting seat 26 through the mounting through hole K1 of the connecting plate 27, etc.

[0047] In this embodiment, the first driving member 21 is rotatably mounted on the first mounting seat 26 through the connecting plate 27 and the connecting member, and then fixedly connected to the slide rail 25 through the first mounting seat 26, so that the first driving member 21 is indirectly rotatably connected to the slide rail 25.

[0048] As Figure 2 shown, in some embodiments, the first mounting seat 26 is provided with a limiting shaft, and the connecting plate 27 is provided with an arc-shaped limiting through hole S1, and the limiting shaft is slidably connected to the arc-shaped limiting through hole S1.

[0049] In this embodiment, the limiting shaft provided on the first mounting seat 26 is slidably connected to the arc-shaped limiting hole provided on the connecting plate 27. When the connecting plate 27 rotates with the connecting piece fitted with the mounting through hole K1 as the fulcrum, the arc-shaped limiting hole provided on the connecting plate 27 can slide relative to the limiting shaft, thereby limiting the rotation angle of the connecting plate 27 and preventing the first driving member 21 mounted on the connecting plate 27 from driving the pushing member 22 to push away the retaining key D and causing an accidental rotation of the first driving member 21 relative to the second driving member 23, improving the working efficiency of removing the retaining key D.

[0050] As Figure 2 shown, in some embodiments, the retaining key removal device 100 of the wheel set further includes a screwing assembly 30. The screwing assembly 30 is connected to the multi-axis robotic arm 10 and is configured to loosen the fastener M provided on the retaining key D. The retaining key retracting assemblies 20 are arranged in pairs, and the paired retaining key retracting assemblies 20 are respectively disposed on both sides of the screwing assembly 30.

[0051] It should be noted that the paired screwing assemblies 30 can be symmetrically arranged on both sides of the screwing assembly 30 or asymmetrically arranged, which is specifically set according to the actual working needs and is not limited herein.

[0052] In this embodiment, when it is necessary to remove the retaining key D of the wheel set 200, the multi-axis robotic arm 10 drives the screwing assembly 30 to loosen the fastener M provided on the retaining key D, and then the retaining key retracting assembly 20 pushes the loosened retaining key D away from the limiting position, so that the retaining key D releases the limitation on the wheel set 200. The retaining key retracting assemblies 20 are arranged in pairs, and the paired retaining key retracting assemblies 20 are respectively disposed on both sides of the screwing assembly 30. The paired screwing assemblies 30 can simultaneously push away the two loosened retaining keys D on the wheel set 200, improving the efficiency of removing the retaining key D.

[0053] As Figure 2 shown, in some embodiments, the retaining key retracting assembly 20 further includes a second driving member 23. The first driving member 21 is connected to the second driving member 23, and the second driving member 23 drives the first driving member 21 to approach or move away from the retaining key D by expansion and contraction.

[0054] In this embodiment, when other mechanisms of the key retaining device 100 of the wheel set need to loosen the key D, the second driving member 23 can drive the first driving member 21 away from the key D to avoid interference with other mechanisms, preventing the first driving member 21 from being too close to the key D and affecting the operation of other mechanisms or causing damage to the first driving member 21 during the operation of other mechanisms. When the first driving member 21 needs to push the loosened key D away from the limiting position, the second driving member 23 can drive the first driving member 21 closer to the key D, enabling the first driving member 21 to only make fine adjustments to drive the pushing member 22 to push the loosened key D away.

[0055] It should be noted that when only the first driving member 21 and the pushing member 22 are provided in the key retaining device 100 of the wheel set, the first driving member 21 can be directly connected to the multi-axis robotic arm 10. In this embodiment, the first driving member 21 is connected to the multi-axis robotic arm 10 through the second driving member 23.

[0056] As Figure 2 shown, in some embodiments, the telescopic direction of the first driving member 21 intersects with the telescopic direction of the second driving member 23, and the second driving member 23 is rotatably connected to the first driving member 21.

[0057] In this embodiment, the telescopic direction of the first driving member 21 intersects with the telescopic direction of the second driving member 23, and the telescopic directions of the first driving member 21 and the second driving member 23 form an angle with each other, preferably perpendicular to each other. When the multi-axis robotic arm 10 drives the key retaining and retracting assembly 20 to move near the key D, the first driving member 21 and the second driving member 23 can adjust the pushing member 22 from two different directions. Since the second driving member 23 is rotatably connected to the first driving member 21, the second driving member 23 can adjust the position of the pushing member 22 when pushing the key D by rotating relative to the second driving member 23.

[0058] As Figure 3 shown, in some embodiments, the pushing member 22 includes a first connecting plate L1 and a second connecting plate L2, and the first connecting plate L1 and the second connecting plate L2 form an angle with each other.

[0059] In this embodiment, the pushing member 22 includes a first connecting plate L1 and a second connecting plate L2, and the first connecting plate L1 and the second connecting plate L2 form an angle with each other. During the process of the first driving member 21 driving the pushing member 22 to push the loosened key D away, the key D first abuts against the first connecting plate L1, and then the first driving member 21 continues to push the pushing member 22, causing the key D to abut against the second connecting plate L2 and pushing the key D away from the limiting position.

[0060] In some alternative embodiments, the first connecting plate L1 and the second connecting plate L2 are perpendicular to each other to form an L shape, which is used to prevent the blocking key D from sliding relative to the pushing member 22 when the pushing member 22 pushes the blocking key D. It can be understood that the first connecting plate L1 and the second connecting plate L2 can also be an integrally formed arc-shaped structure.

[0061] Although the present invention has been described with reference to the preferred embodiments, various modifications can be made to it and components therein can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way. The present invention is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A wheel set stop key disassembly device, characterized in that: include: Multi-axis robotic arm; as well as The block key return assembly is connected to the multi-axis robot arm, and the block key return assembly is constructed to be driven by the multi-axis robot arm to push the released block key away from the limit position, so that the block key is disengaged from the wheelset to release the limit on the wheelset, and the block key return assembly includes a first driving member and a pushing member, and the pushing member is connected to the first driving member, and the first driving member is extended and retracted to drive the pushing member to abut against the block key and push the block key away from the limit position.

2. The wheel set stop key removal device according to claim 1, characterized in that: The stop key retracting assembly further includes a second driving member, the first driving member is connected to the second driving member, and the second driving member is telescopic to drive the first driving member to approach or move away from the stop key.

3. The wheel set stop key removal device according to claim 2, characterized in that: The telescopic direction of the first driving member intersects with the telescopic direction of the second driving member, and the second driving member is rotationally connected to the first driving member.

4. The wheel set stop key disassembly device according to any one of claims 2-3, characterized in that: The pushing member includes a first connecting plate and a second connecting plate, and the first connecting plate and the second connecting plate form an angle with each other.

5. The wheel set stop key removal device according to claim 4, characterized in that: The wheel pair stop key removal device also includes a mounting frame, and the mounting frame is connected to the multi-axis mechanical arm. The key return assembly also includes a slider and a slide rail, wherein the slider is fixedly connected to the mounting frame, the slide rail is slidably connected to the slider, the second drive member is fixedly connected to the slide rail, and the first drive member is rotationally connected to the slide rail.

6. The wheel set stop key removal device according to claim 5, characterized in that: The stop key return assembly also includes: A first mounting seat, the first mounting seat is fixedly connected to the slide rail; Connectors; and A connecting plate, wherein the connecting plate is provided with a mounting through hole, the connecting member is provided in the mounting through hole, the connecting plate is rotatably connected to the first mounting seat via the connecting member, and the first driving member is connected to the connecting plate.

7. The wheel set stop key removal device according to claim 6, characterized in that: The first mounting seat is provided with a limiting shaft, the connecting plate is provided with an arc-shaped limiting through hole, and the limiting shaft is slidably connected with the arc-shaped limiting through hole.

8. The wheel set stop key removal device according to claim 1, characterized in that: Also includes: A screwing assembly is connected to the multi-axis robot arm, and is configured to loosen a fastener disposed on the stop key. The stop key retraction assemblies are disposed in pairs, and the paired stop key retraction assemblies are disposed on both sides of the screwing assembly.

9. The wheel set stop key removal device according to claim 8, characterized in that: The screwing assembly comprises: Twist the shaft; an electric wrench, the electric wrench being arranged on the screwing shaft; and A sleeve is drivingly connected to the electric wrench, the electric wrench can drive the sleeve to rotate along its own axis, the sleeve is configured to cooperate with the fastener of the stop key, and the axis of the screwing shaft intersects with the axis of the sleeve.

10. The wheel set stop key removal device according to claim 1, characterized in that: Also includes: A base, wherein a control system is arranged in the base; A first positioning assembly, mounted on the base, the first positioning assembly is electrically connected to the control system, and the first positioning assembly is configured to locate position information of a bogie bearing end cover; and A second positioning component is connected to the multi-axis robotic arm, and the second positioning component is electrically connected to the control system. The positioning component is configured to be used for locating specific position information of the shift key.

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